Guide: Apache Doris is one of the most widely used OLAP engines in Xiaomi Group. This paper mainly analyzes the performance status of A/B experimental scene query from the perspective of data, and discusses the performance optimization solution based on Apache Doris. After a series of performance optimization and testing based on Doris, the query […]
At last year’s DevCon, Huang Dongxu, co-founder and CTO of PingCAP, put forward a conjecture: “The database itself will die as a software form, and the platformization and micro-service of the database will replace the original database software form.” Today, this conjecture It is being proven—almost all database vendors provide services on the cloud, and
Summary:This article focuses on several ways to improve program performance by optimizing Cache usage. This article is shared from HUAWEI CLOUD community “Things about Compiler Optimization (7): Cache Optimization”, author: Assistant Bi Sheng. introduction Software developers often expect computer hardware to have unlimited capacity, zero access delay, unlimited bandwidth, and cheap memory, but the reality
Start with an online question I recently came across some online[HMDConfigManager remoteConfigWithAppID:]Stuck initial analysis Observed the main thread stack, the lock used is a read-write lockThen I went through the sub-threads holding the lock. There are various situations, and they are basically in the normal execution state. For example, some are in the state of
The layered monolithic architecture style is the application of layered thinking in the monolithic architecture, which focuses on the layering of responsibilities from a technical perspective. At the same time, based on the different change rates of different layers, the propagation of changes in the system can be controlled to a certain extent, which helps
In the blink of an eye, 2022 has come to an end. In the past year, domestic open source forces continued to flourish and move forward steadily; at the same time, more and more teams began to focus on the operation of open source communities. As a local open source technology community, News Fast Delivery
foreword for pprof, I believe that programmers who are familiar with the Go language are basically familiar with it. Generally, online problems can be quickly located by it. But in actual projects, we often don’t enable it for performance reasons, but we have to rely on it to analyze problems. Fortunately, go-zero has been well
What are the types of operations in the open source circle? What skills are needed for different operations, and what work are you responsible for every day? In the fifth episode of the “China Open Source Community Landscape Community Chat” live broadcast series, we invited Wang Xiangyang (Benker), head of PG Chinese community operations, and
Bytedance feature storage pain points The overall process of feature storage in the current industry is mainly divided into the following four steps: The overall process of feature storage Online business feature module extraction; The extracted features are stored in HDFS in row format. Considering the cost, the original features are not stored at this
1. Background Leaked test bugs refer to product logic defects that are not found during the testing process (especially those that can be reproduced in the test environment), and are found and fed back after the release of the online version or after the user experience. It may cause online failure or asset loss. In
With the development of 5G and AI technology, the video industry is ushering in a period of high-speed growth. Video accounted for 43% of network bandwidth in 2019, and is expected to reach 76% by 2025, still maintaining high-speed growth. Among them Most of them are ultra-high-definition videos. According to the prediction of an authoritative
Author | Wang Yuekai guide Having been engaged in the research and development of B-end business systems for many years, it is inevitable to have this kind of thinking: What are the technical challenges of B-end systems? What kind of business architecture is considered a good architecture? Based on the development history of Baidu’s contract
Author: Xieyang introduction This article mainly introduces why you need to use RocketMQRetry and bottom-up mechanismproducers and consumers triggerRetry conditions and specific behaviorhow in RocketMQReasonable use of retry mechanismto help build resilient, highly available systemsBest Practices. RocketMQ’s retry mechanism includes three parts, namely, producer retry, server internal data replication encounters unexpected problems, and consumer consumption
pnpm is a fast, disk space efficient package manager. It uses a content-addressable filesystem to store all files for all module directories on disk. When using npm or Yarn, if you have 100 projects that use lodash, you will have 100 copies of lodash on disk, whereas with pnpm lodash will be stored in a
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